Method of extracting oil.



A N. G REGG. MET-HUD 0F EXTR'ACTING OIL.

(Applicationled Feb. 21, 1900.) (No Model.)

- Patented Oct. 2, |900.

thecontents thereof.

ov the perforated UNITED'- STATES PATENT j OFFICE,

'N oRRfIs B. GREGG, or sT LOUIS, MISSOURI.'

|v| E'rHoD o FA EXTRACTING on..

SPECIFICATION forming part of Letters Patent No. 658,948, dated October2, 1 900. Application filed february 21, 1900. Serial No. 5,992. (Nospecimens.) i

To a/ZZ whom it mayconcern):

Be it known that I, NoRRIs B. GREGcL-a citi A zen of the United States,residing at the city of St. Louis, in the State of Missouri, have in- 5vented certain 'new and useful Improvements in Methods f Extracting Oilor Grease from Oily'or Fatty Materials, of which the fellow-- lo ing,forming part of this specification.

My invention relates to a method of extract'- ing oil or grease frommaterials suchas ole-l aginous seeds o r nuts or fatty materials' inwhich the sacks or cells are broken to release The essential feature ofAmy method conslsts 1n placing the materials to be treated in a closedreceptaclean d .extractingthe air 'therefrom, to thus create a vacuum,under which zo the oil or grease may be freed from thesacks as I mayutilize.

l designates a vacuum-pan provided with an {inlet-Iman hole 2 and adischarge-manhole 3.

- 4 designates the hollow shaft through which hot air, steam, or watermay be admitted to `the interior of vthe vacuum-pan, the shaft'be-f 3-5ing provided with perforated arms 5 and seat.-

ed in a'bearing 6 in the bottom of the-pan.

'The said shaft passes through the wall of the vacuum-pan and is adaptedto be rotated by gearing such as that designated at 7, so that. arms 5may be -moved within the pan.""' y8.designates a pipe provided'with aValve 9.

This pipe is designed for use inextractingv the air from the interorofthe vacuum-pan to profrom which the oil or grease is to be ex/t'ractedis placed in the vacuum-pan and 'the'air is withdrawn from-saidpanthrough the pipe 8, 5o .thereby `relieving the oil or grease ,containingsacks or cellsfrom pressure of air thereagainst, so that the' force ofthe contents of In carrying o u-t my method any suitable apparatus maybe used.

- In the accompanying drawing 1 have shown Y a vertical sectional viewof the apparatussuch the sacks lor c'ells bursts them open to releasethe oily or fatty material. In some instances it may be advisable tosupply heater' moisture to the material u nder 'treatment and also toagitate it, andto .this end I make use of the hollow shaft 4, -havingperforatedl arms 5, throughwhich hotai r, steam', orwater may beconveyed into the vacuum-pan. `This shaft being rotated, the 'hot air,steam, or water'is etfectually commingled with the materialunder'treatment, so that such material is heated or softened to adesirable extent before the air is extracted from the vacuum-pan toplace the material under the vacuum. After the material has been heatedor softened the hot air or steam may be extracted in the step ofvvcreating a vacum, or the steam -or water introduced maybe removed inany other suitable manner-such, for instance, as by Withdrawing itthrough the perforated arms 5 and hollow. shaft 4 by asuitable pumparranged in communication therewith. Byavacuum I mean a condition asnear as possible to a complete vacuum.

fatty material of various descriptions, such as oleaginous seeds or nutsand animalfats; but it is particularly for use in extracting oil fromseeds, such as linseed, cotton-seed, or otheroleaginons seeds and nuts.Where the material being treated is oleaginous seeds or nuts or like.lproducts, the material .is first ground*- or crushed to break its shellsor hulls and'expose the oil sacks or cells. After the .material has beensubjected to the vacuum in the manner herein described and the sacks orcells 'containing the oil'or grease have been .from-the vacuum-panand-"placed in a pressure-press or percolating apparatus of anyordinary-'description to expel the oil or grease lfrom'the mass.

I claim as my invention-ffrom-oily or fatty materials consisting inplacing the material in a receptacle and extracting the air from saidreceptacle to producea vacuu m therein and cause-the oil sacks or cellsto open, substantially as'described.

2. The method of extracting oil or grease from koily or fatty materials'consisting in pleeopened as explainedthe material is IQIDQVed.

extracting the airg-from thevacuumpanand v My method is of utility intreating oilyand y 1. The method off extracting oil or grease IOO ingsaid material in a receptacle, subjecting hot air or moisture into saidreceptacle and lo.

the material while in said receptacle to heat agitating the material andsubsequently exor moisture, and subsequently extracting the tai-actingthe air and moisture from said reair from said receptacle to create avacuum ceptfacle thereby creating a vacuum therein, therein under whichthe oil sacks or cells are substantially as described.

caused to burst, substantially as described. NORRIS B. GREGG.

3. The method of extracting oil or grease In presence offrom oily orfatty materials consisting in plac- E. S. KNIGHT,

ing said material in a receptacle, injecting N. V. ALEXANDER.

